A return air cover plate clamping structure and an air conditioner with the same

Abstract

The application provides a return air cover plate clamping structure and an air conditioner with the same, relates to the technical field of refrigeration and heating equipment, and solves the technical problem of low overall strength of a return air cover plate in the prior art. The clamping structure comprises a clamping portion arranged on the assembly side of the return air cover plate, the clamping portion extends from one end to the other end of the assembly side of the return air cover plate, and the clamping portion and the return air cover plate are in an integrated structure. The clamping portion in the integrated structure with the return air cover plate is arranged from one end to the other end of the assembly side of the return air cover plate, so that the overall strength of the return air cover plate is improved, and the overall strength of the return air cover plate is improved by 50% compared with the return air cover plate with a segmented buckle in the prior art.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of refrigeration and heating equipment, in particular to a return air cover plate clamping structure and an air conditioner with the same. BACKGROUND

[0002] A ducted air conditioner is a hidden air conditioner, and its indoor unit and air duct are hidden inside the ceiling, making the indoor space look more neat and beautiful. The ducted air conditioner is usually composed of an indoor unit and an outdoor unit, and it sends air to the indoor through the connection of the air duct. The existing indoor unit of the ducted air conditioner has two return air installation modes, i.e. rear return air and lower return air, according to the engineering installation condition. Therefore, the upper cover plate of the indoor unit is an integral structure, and the lower cover plate can be split into a lower cover plate and a return air cover plate. When rear return air is needed, the return air cover plate covers the lower return air port. When lower return air is needed, the return air cover plate covers the rear return air port to achieve different return air modes.

[0003] However, the present applicant finds that the prior art at least has the following technical problems:

[0004] The existing return air cover plate of the ducted air conditioner generally adopts the following two assembly methods:

[0005] (1) The return air cover plate is fixed by screws, and the longer the model, the more screws are used, resulting in low assembly efficiency of this assembly method.

[0006] (2) One side of the return air cover plate is fixed by screws, and the other side is fixed by buckles. For example, the prior art discloses a ducted air conditioner, which comprises a shell, a return air cover plate, a first return air port and a second return air port, and a position adjusting part is arranged at the connection position of the second return air port and the return air cover plate. However, the above-mentioned existing return air cover plate is matched with the corresponding buckle hole through five buckles in the front section of the assembly with the upper / lower cover plate. However, the buckle structure in the form of a gap leads to low overall strength of the return air cover plate. On the other hand, the buckle structure itself has low strength, which causes the buckle to close during production or transportation, so that it cannot be matched with the upper / lower cover plate. The installer needs to pry open the closed buckle to continue assembly, thereby affecting the assembly efficiency. SUMMARY

[0007] The purpose of the present application is to provide a return air cover plate clamping structure and an air conditioner with the same to solve the technical problem of low overall strength of the return air cover plate in the prior art. The preferred technical solutions in the many technical solutions provided by the present application can produce many technical effects, which are described in detail below.

[0008] To achieve the above-mentioned purpose, the present application provides the following technical solutions:

[0009] The first object of the present application is to provide a return air cover plate clamping structure, comprising a clamping portion arranged on the assembly side of the return air cover plate, and the clamping portion extends from one end to the other end of the assembly side of the return air cover plate, and the clamping portion and the return air cover plate are integrated.

[0010] According to a preferred embodiment, the clamping portion is bent from the edge of the assembly side of the return air cover plate first back and then upward and outward, and the clamping portion forms a clamping cavity with an open outward.

[0011] According to a preferred embodiment, the clamping portion comprises a first flange, a second flange, a third flange and a fourth flange, wherein the first flange is arranged by backfolding from the edge of the assembly side of the return air cover plate, and the lower surface of the first flange is arranged close to the upper surface of the return air cover plate, the second flange is arranged by tilting upward and outward from the free end of the first flange, the third flange is arranged by tilting outward and downward from the free end of the second flange, and the fourth flange is arranged by tilting outward and upward from the free end of the third flange.

[0012] According to a preferred embodiment, the connection between the second flange and the third flange forms the highest containing point of the clamping cavity, and the height of the highest containing point from the upper surface of the first flange in the clamping cavity is L.

[0013] According to a preferred embodiment, the connection between the third flange and the fourth flange forms the lowest embedding point of the clamping cavity, and the height of the lowest embedding point from the upper surface of the first flange in the clamping cavity is H, and H < L.

[0014] According to a preferred embodiment, it further comprises a first embedding portion arranged on the connecting side of the lower cover plate and the return air cover plate, and the first embedding portion can be embedded in the clamping cavity of the clamping portion and form a clamping with the clamping portion.

[0015] According to a preferred embodiment, the first embedding portion comprises a supporting edge, a backfolding edge and a bending edge, wherein the supporting edge is arranged by extending upward first and then horizontally outward from the edge of the lower cover plate, and the height of the upward extension of the lower surface of the supporting edge is consistent with the height of the upper surface of the first flange of the clamping portion, so that the supporting edge is arranged close to the upper surface of the first flange, the backfolding edge is arranged by backfolding from the free end of the supporting edge to the edge of the lower cover plate, and the bending edge is arranged by tilting outward and upward from the free end of the backfolding edge.

[0016] According to a preferred embodiment, the width of the outward extension of the supporting edge from the edge of the lower cover plate at least ensures that the backfolding edge and the bending edge are contained in the clamping cavity.

[0017] According to a preferred embodiment, a second embedding part is arranged at the connecting side of the upper cover plate and the air return cover plate, and the second embedding part can be embedded into the clamping cavity of the clamping part and form a clamping with the clamping part.

[0018] According to a preferred embodiment, the second embedding part comprises a first vertical edge, a horizontal edge and a second vertical edge, wherein the first vertical edge is arranged vertically downward from the edge of the upper cover plate, the horizontal edge is arranged horizontally from the free end of the first vertical edge to the edge of the upper cover plate, the width of the horizontal edge is consistent with the highest accommodation point height L of the clamping cavity, and the second vertical edge is arranged vertically upward from the free end of the horizontal edge, and the height of the second vertical edge at least ensures that the free end of the second vertical edge can abut the bottommost embedding point of the clamping cavity.

[0019] Based on the above technical solution, the air return cover plate clamping structure has at least the following technical effects:

[0020] The air return cover plate clamping structure comprises a clamping part arranged at the assembly side of the air return cover plate, and the clamping part is arranged from one end to the other end of the assembly side of the air return cover plate, and the clamping part and the air return cover plate are an integral structure. By adopting the clamping part in an integral structure with the air return cover plate, and arranging the clamping part from one end to the other end of the assembly side of the air return cover plate, the overall strength of the air return cover plate of the present application is improved, and compared with the air return cover plate with a segmented buckle in the prior art, the overall strength of the air return cover plate of the present application is improved by 50%.

[0021] On the other hand, the air return cover plate clamping structure of the preferred embodiment of the present application further comprises a first embedding part arranged at the connecting side of the lower cover plate and the air return cover plate, and a second embedding part arranged at the connecting side of the upper cover plate and the air return cover plate. The first embedding part can enable the connecting side of the lower cover plate to be embedded into the clamping cavity of the clamping part of the air return cover plate and form a clamping with the clamping part, and the second embedding part can enable the connecting side of the upper cover plate to be embedded into the clamping cavity of the clamping part of the air return cover plate and form a clamping with the clamping part, thereby enhancing the reliability of the cooperation of the air return cover plate with the upper / lower cover plate, and improving the production and assembly efficiency.

[0022] The second object of the present application is to provide an air conditioner comprising the air return cover plate clamping structure.

[0023] The air conditioner of the present application comprises the air return cover plate clamping structure, which improves the overall strength of the air return cover plate and prolongs the service life of the air conditioner, and improves the assembly efficiency when the air return cover plate is assembled. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to make the technical solutions of the embodiments of the present application or the prior art clearer, the accompanying drawings needed in the embodiments or prior art description will be briefly introduced. Obviously, the accompanying drawings in the following description only need to be some embodiments of the present application, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present application.

[0025] Figure 1 is a structural schematic diagram of the return air cover plate of the present application;

[0026] Figure 2 is a side view of the return air cover plate of the present application;

[0027] Figure 3 is an assembly schematic diagram of the return air cover plate and the lower cover plate of the present application;

[0028] Figure 4 is Figure 3 an enlarged view of A in FIG.

[0029] Figure 5 is an assembly schematic diagram of the return air cover plate and the upper cover plate of the present application;

[0030] Figure 6 is Figure 5 an enlarged view of B in FIG.

[0031] In the figure: 1-return air cover plate; 2-clamping part; 3-lower cover plate; 4-upper cover plate; 21-first flange; 22-second flange; 23-third flange; 24-fourth flange; 25-clamping cavity; 31-supporting edge; 32-lapping edge; 33-bent edge; 41-first vertical edge; 42-horizontal edge; 43-second vertical edge. DETAILED DESCRIPTION

[0032] In order to make the technical solutions of the embodiments of the present application or the prior art clearer, the accompanying drawings needed in the embodiments or prior art description will be briefly introduced. Obviously, the accompanying drawings in the following description only need to be some embodiments of the present application, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present application.

[0033] Embodiment 1

[0034] As Figure 1As shown, the present application provides a return air cover plate clamping structure, which comprises a clamping part 2 arranged on the assembly side of the return air cover plate 1, and the clamping part 2 is arranged from one end to the other end of the assembly side of the return air cover plate 1, and the clamping part 2 and the return air cover plate 1 are integrated. By adopting the clamping part with integrated structure with the return air cover plate, and the clamping part is arranged from one end to the other end of the assembly side of the return air cover plate, thereby improving the overall strength of the return air cover plate of the present application, compared with the return air cover plate in the prior art, the overall strength of the return air cover plate of the present application is improved by 50%, solving the problem of low overall strength of the return air cover plate in the prior art.

[0035] According to a preferred embodiment, as shown in the drawings, Figure 2 The clamping part 2 is folded back first and then upward and outward from the edge of the assembly side of the return air cover plate 1, and the clamping part 2 forms a clamping cavity 25 with an open outward. That is, the clamping part 2 is folded back first and then upward and outward from the edge of the assembly side of the return air cover plate 1, and the first folding back can form double material thickness at the edge of the assembly side of the return air cover plate, thereby strengthening the overall strength. Then it is folded upward and outward and forms a clamping cavity with an open outward, and the overall structural strength of the clamping part of the present application is much greater than that of the segmented buckle in the prior art.

[0036] Specifically, as shown in the drawings, Figure 2 The clamping part 2 comprises a first flange 21, a second flange 22, a third flange 23 and a fourth flange 24. Among them, the first flange 21 is arranged by folding back from the edge of the assembly side of the return air cover plate 1, and the lower surface of the first flange 21 is arranged close to the upper surface of the return air cover plate 1, thereby forming the first flange by folding back from the edge of the assembly side of the return air cover plate 1, thereby strengthening the overall strength by double material thickness. The second flange 22 is arranged upward and outward from the free end of the first flange 21. The third flange 23 is arranged outward and downward from the free end of the second flange 22, and the fourth flange 24 is arranged outward and upward from the free end of the third flange 23. Preferably, the connection between the second flange 22 and the third flange 23 forms the highest containing point of the clamping cavity 25, and the height of the highest containing point in the clamping cavity from the upper surface of the first flange 21 is L, which is referred to as the highest containing point height L. The connection between the third flange 23 and the fourth flange 24 forms the lowest embedding point of the clamping cavity 25, and the height of the lowest embedding point in the clamping cavity from the upper surface of the first flange 21 is H, which is referred to as the lowest embedding point height H, and H < L. By making the lowest embedding point height H less than the highest containing point height L, the clamping part can wrap the first embedding part of the lower cover plate or the second embedding part of the upper cover plate, so that their connection will not easily fall off. At the same time, due to the relatively long length of the clamping part of the return air cover plate, it has a certain elasticity, and the third flange as the tail of the clamping part is arranged upwardly, which is beneficial to the installation of the return air cover plate, thereby improving the assembly efficiency.

[0037] According to a preferred embodiment, as shown in Figure 3 and Figure 4 , Figure 3 shows the overall assembly diagram of the back air return, at this time, the air return cover plate is assembled below the unit with the lower cover plate to achieve the state of the back air return of the unit. The air return cover plate clamping structure of the present application also includes a first embedding part provided on the connecting side of the lower cover plate 3 and the air return cover plate 1, which can be embedded in the clamping cavity 25 of the clamping part 2 and form a clamping with the clamping part 2. As shown in Figure 4 , the first embedding part includes a support edge 31, an overlapping edge 32 and a bent edge 33, wherein the support edge 31 is provided by extending upward first and horizontally outward from the edge of the lower cover plate 3, and the height of the upward extending lower surface of the support edge 31 is consistent with the height of the upper surface of the first flange 21 of the clamping part 2, so that the support edge 31 is arranged in close contact with the upper surface of the first flange 21, facilitating clamping and installation. The overlapping edge 32 is arranged by overlapping downward from the free end of the support edge 31 to the edge of the lower cover plate 3, and the bent edge 33 is arranged by inclining outward and upward from the free end of the overlapping edge 32. The width of the support edge 31 extending outward from the edge of the lower cover plate 3 at least ensures that the overlapping edge 32 and the bent edge 33 are accommodated into the clamping cavity 25, and the free end of the bent edge 33 can abut against the highest accommodation point position of the clamping cavity 25.

[0038] In the air return cover plate clamping structure of the present application, the lowest embedding point height H is less than the highest accommodation point height L, and the reason why L cannot be less than H is that the air return cover plate cannot interfere with the lower cover plate after assembly, otherwise it will cause the deformation of the lower cover plate and the unit may produce abnormal noise.

[0039] According to a preferred embodiment, as shown in Figure 5 and Figure 6 , the air return cover plate clamping structure of the present application also includes a second embedding part provided on the connecting side of the upper cover plate 4 and the air return cover plate 1, which can be embedded in the clamping cavity 25 of the clamping part 2 and form a clamping with the clamping part 2. Preferably, as shown in Figure 6 , the second embedding part includes a first vertical edge 41, a horizontal edge 42 and a second vertical edge 43, wherein the first vertical edge 41 is arranged by extending vertically downward from the edge of the upper cover plate 4, the horizontal edge 42 is arranged by extending horizontally from the free end of the first vertical edge 41 to the edge of the upper cover plate 4, and the width of the horizontal edge 42 is consistent with the highest accommodation point height L of the clamping cavity 25, the second vertical edge 43 is arranged by extending vertically upward from the free end of the horizontal edge 42, and the height of the second vertical edge 43 at least ensures that the free end of the second vertical edge 43 can abut against the lowest embedding point position of the clamping cavity 25. As shown in Figure 5 and Figure 6It is an assembly diagram of the return air cover plate and the upper cover plate, at this time, the return air cover plate is installed on the side of the unit, and is assembled with the upper cover plate to achieve the state of returning air under the unit. At this time, the second embedding part is in a work-like structure to form a clamping connection with the clamping part of the return air cover plate.

[0040] The clamping part of the return air cover plate is integrally formed with the return air cover plate, and extends from one end to the other end of the assembly side of the return air cover plate, thereby improving the overall strength of the return air cover plate of the present application. Compared with the return air cover plate with a segmented buckle in the prior art, the overall strength of the return air cover plate of the present application is improved by 50%. In addition, the return air cover plate clamping structure of the present application further comprises a first embedding part arranged on the connecting side of the lower cover plate and the return air cover plate and a second embedding part arranged on the connecting side of the upper cover plate and the return air cover plate. The connecting side of the lower cover plate is embedded into the clamping cavity and the clamping part of the return air cover plate through the first embedding part to form a clamping connection, and the connecting side of the upper cover plate is embedded into the clamping cavity and the clamping part of the return air cover plate through the second embedding part to form a clamping connection, thereby improving the reliability of the cooperation between the return air cover plate and the upper / lower cover plate and improving the production and assembly efficiency.

[0041] Embodiment 2

[0042] The present application also provides an air conditioner comprising the indoor unit of the ducted air conditioner, wherein the indoor unit has the return air cover plate clamping structure of embodiment 1.

[0043] In the description of the present application, it should be noted that, unless otherwise specified, the meaning of "a plurality of" is two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" and the like are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0044] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0045] The above merely illustrates the specific embodiments of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can easily think of the changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A return air cover snap-fit ​​structure, characterized in that, The device includes a snap-fit ​​part (2) disposed on the assembly side of the return air cover (1), and the snap-fit ​​part (2) extends from one end of the assembly side of the return air cover (1) to the other end. The snap-fit ​​part (2) and the return air cover (1) are integrally formed. The snap-fit ​​part (2) is formed by first folding back from the edge of the assembly side of the return air cover (1) and then bending upward and outward. The snap-fit ​​part (2) forms a snap-fit ​​cavity (25) with an open opening facing outward. The snap-fit ​​part (2) includes a first flange (21), a second flange (22), a third flange (23), and a third flange (24). The fourth flange (24) is formed by folding back the first flange (21) from the edge of the return air cover (1) assembly side, and the lower surface of the first flange (21) is closely attached to the upper surface of the return air cover (1). The second flange (22) is inclined upward and outward from the free end of the first flange (21). The third flange (23) is inclined outward and downward from the free end of the second flange (22). The fourth flange (24) is inclined outward and upward from the free end of the third flange (23).

2. The return air plenum card interface structure of claim 1, wherein, The connection between the second flange (22) and the third flange (23) forms the highest receiving point of the snap-fit ​​cavity (25), and the highest receiving point is at a height L from the upper surface of the first flange (21) inside the snap-fit ​​cavity (25).

3. The return air plenum card interface structure of claim 2, wherein, The connection between the third flange (23) and the fourth flange (24) forms the lowest embedding point of the snap-fit ​​cavity (25). The lowest embedding point is located at a height H from the upper surface of the first flange (21) within the snap-fit ​​cavity (25), and H < L.

4. The return air plenum card interface structure of any of claims 1 to 3, wherein, It also includes a first embedding part disposed on the side where the lower cover plate (3) connects with the return air cover plate (1), the first embedding part being able to embed into the snap-fit ​​cavity (25) of the snap-fit ​​part (2) and form a snap-fit ​​with the snap-fit ​​part (2).

5. The return air plenum card interface structure of claim 4, wherein, The first embedding part includes a support edge (31), a folded edge (32), and a bent edge (33). The support edge (31) extends upward and then horizontally outward from the edge of the lower cover plate (3). The height of the lower surface of the support edge (31) extending upward is consistent with the height of the upper surface of the first flange (21) of the snap-fit ​​part (2), so that the support edge (31) fits against the upper surface of the first flange (21). The folded edge (32) is formed by folding back from the free end of the support edge (31) towards the edge of the lower cover plate (3). The bent edge (33) is formed by tilting outward and upward from the free end of the folded edge (32).

6. The return air plenum card interface structure of claim 5, wherein, The width of the support edge (31) extending outward from the edge of the lower cover plate (3) is at least sufficient to ensure that the overlapping edge (32) and the bent edge (33) are accommodated within the snap-fit ​​cavity (25).

7. The return air plenum card interface structure of any of claims 1 to 3, wherein, It also includes a second embedding part disposed on the side where the upper cover plate (4) connects with the return air cover plate (1), the second embedding part being able to be embedded in the snap-fit ​​cavity (25) of the snap-fit ​​part (2) and form a snap-fit ​​with the snap-fit ​​part (2).

8. The return air plenum card interface structure of claim 7, wherein, The second embedding part comprises a first vertical edge (41), a horizontal edge (42) and a second vertical edge (43), wherein the first vertical edge (41) is vertically downwardly extended from the edge of the upper cover plate (4), the horizontal edge (42) is horizontally extended from the free end of the first vertical edge (41) to the edge direction of the upper cover plate (4), the width of the horizontal edge (42) is consistent with the highest containing point height L of the clamping cavity (25), and the second vertical edge (43) is vertically upwardly extended from the free end of the horizontal edge (42), and the height of the second vertical edge (43) at least guarantees that the free end of the second vertical edge (43) can abut against the lowest embedding point position of the clamping cavity (25).

9. An air conditioner characterized by comprising: The air duct machine inner machine has the return air cover plate clamping structure of any one of claims 1 to 8.

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